笔记本声卡问题～～

large2000

我用的是Acer TM270 笔记本。装linux一切正常。但是装上以后只有笔记本自带的内置音响有声音。在音频输出孔插上音箱以后，就没有声音了（外置音箱也不出声，笔记本内置的音箱也不出声）。
一般来讲，笔记本电脑插上外置音箱后，就把内置音箱自动屏闭掉了。但是怎么外置的音箱会不出声呢？奇怪！
经检查，外置音箱是好的，在WinXp下无此现象。还望各位高手指点～～谢谢了！

下面是lspci -v 所列出来的配置信息：


0000:00:00.0 Host bridge: Silicon Integrated Systems [SiS] 650/M650 Host (rev 01)
        Flags: bus master, medium devsel, latency 64
        Memory at e8000000 (32-bit, non-prefetchable) [size=64M]
        Capabilities: [c0] AGP version 2.0

0000:00:01.0 PCI bridge: Silicon Integrated Systems [SiS] Virtual PCI-to-PCI bridge (AGP) (prog-if 00 [Normal decode])
        Flags: bus master, fast devsel, latency 99
        Bus: primary=00, secondary=01, subordinate=01, sec-latency=68
        I/O behind bridge: 0000a000-0000afff
        Memory behind bridge: ec100000-ec1fffff
        Prefetchable memory behind bridge: f0000000-f7ffffff

0000:00:02.0 ISA bridge: Silicon Integrated Systems [SiS] SiS961 [MuTIOL Media IO]
        Flags: bus master, medium devsel, latency 0

0000:00:02.1 SMBus: Silicon Integrated Systems [SiS]: Unknown device 0016
        Flags: medium devsel
        I/O ports at 8080

0000:00:02.2 USB Controller: Silicon Integrated Systems [SiS] USB 1.0 Controller (rev 07) (prog-if 10 [OHCI])
        Subsystem: Silicon Integrated Systems [SiS] USB 1.0 Controller
        Flags: bus master, medium devsel, latency 64, IRQ 10
        Memory at ec000000 (32-bit, non-prefetchable) [size=4K]

0000:00:02.3 USB Controller: Silicon Integrated Systems [SiS] USB 1.0 Controller (rev 07) (prog-if 10 [OHCI])
        Subsystem: Silicon Integrated Systems [SiS] USB 1.0 Controller
        Flags: bus master, medium devsel, latency 64, IRQ 10
        Memory at ec001000 (32-bit, non-prefetchable) [size=4K]

0000:00:02.5 IDE interface: Silicon Integrated Systems [SiS] 5513 [IDE] (rev d0) (prog-if 80 [Master])
        Subsystem: Silicon Integrated Systems [SiS] SiS5513 EIDE Controller (A,B step)
        Flags: bus master, fast devsel, latency 128
        I/O ports at 9480

0000:00:02.6 Modem: Silicon Integrated Systems [SiS] AC'97 Modem Controller (rev a0) (prog-if 00 [Generic])
        Subsystem: COMPAL Electronics Inc: Unknown device 0012
        Flags: medium devsel, IRQ 5
        I/O ports at 8400 [size=256]
        I/O ports at 9000 [size=128]
        Capabilities: [48] Power Management version 2

0000:00:02.7 Multimedia audio controller: Silicon Integrated Systems [SiS] Sound Controller (rev a0)
        Subsystem: Acer Incorporated [ALI]: Unknown device 001a
        Flags: bus master, medium devsel, latency 173, IRQ 5
        I/O ports at 8800 [size=256]
        I/O ports at 9080 [size=128]
        Capabilities: [48] Power Management version 2

0000:00:05.0 FireWire (IEEE 1394): VIA Technologies, Inc. IEEE 1394 Host Controller (rev 46) (prog-if 10 [OHCI])
        Subsystem: VIA Technologies, Inc. IEEE 1394 Host Controller
        Flags: bus master, medium devsel, latency 64, IRQ 5
        Memory at ec002000 (32-bit, non-prefetchable) [size=2K]
        I/O ports at 9400 [size=128]
        Capabilities: [50] Power Management version 2

0000:00:06.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)
        Subsystem: Acer Incorporated [ALI]: Unknown device 001a
        Flags: bus master, medium devsel, latency 64, IRQ 10
        I/O ports at 8c00 [size=256]
        Memory at ec002800 (32-bit, non-prefetchable) [size=256]
        Capabilities: [50] Power Management version 2

0000:00:09.0 CardBus bridge: ENE Technology Inc CB1420 Cardbus Controller (rev 01)
        Subsystem: Acer Incorporated [ALI]: Unknown device 001a
        Flags: bus master, medium devsel, latency 168, IRQ 10
        Memory at 0f000000 (32-bit, non-prefetchable) [size=4K]
        Bus: primary=00, secondary=02, subordinate=05, sec-latency=176
        Memory window 0: 0f400000-0f7ff000 (prefetchable)
        Memory window 1: 0f800000-0fbff000
        I/O window 0: 00004000-000040ff
        I/O window 1: 00004400-000044ff
        16-bit legacy interface ports at 0001

0000:00:09.1 CardBus bridge: ENE Technology Inc CB1420 Cardbus Controller (rev 01)
        Subsystem: Acer Incorporated [ALI]: Unknown device 001a
        Flags: bus master, medium devsel, latency 168, IRQ 10
        Memory at 0f001000 (32-bit, non-prefetchable) [size=4K]
        Bus: primary=00, secondary=06, subordinate=09, sec-latency=176
        Memory window 0: 0fc00000-0ffff000 (prefetchable)
        Memory window 1: 10000000-103ff000
        I/O window 0: 00004800-000048ff
        I/O window 1: 00004c00-00004cff
        16-bit legacy interface ports at 0001

0000:01:00.0 VGA compatible controller: Silicon Integrated Systems [SiS] 65x/M650/740 PCI/AGP VGA Display Adapter (prog-if 00 [VGA])
        Subsystem: Acer Incorporated [ALI]: Unknown device 001a
        Flags: 66MHz, medium devsel, IRQ 10
        BIST result: 00
        Memory at f0000000 (32-bit, prefetchable) [size=128M]
        Memory at ec100000 (32-bit, non-prefetchable) [size=128K]
        I/O ports at a000 [size=128]
        Capabilities: [40] Power Management version 1
        Capabilities: [50] AGP version 2.0

linuxtester1

建议你 先看看置顶的 帖子

large2000

还请各位多指教～～就差这最后一关了～～